NULL pointer dereference in PHP - CVE-2018-19935
Published: December 7, 2018 / Updated: December 7, 2018
Vulnerability identifier: #VU16315
CSH Severity: Low
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2018-19935
CWE-ID: CWE-476
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause DoS condition on the target system.
The weakness exists due to NULL pointer dereference in _php_imap_mail when improper check of wheater message. A remote attacker can supply specially crafted message, trigger NULL pointer dereference and cause the service to crash.
The weakness exists due to NULL pointer dereference in _php_imap_mail when improper check of wheater message. A remote attacker can supply specially crafted message, trigger NULL pointer dereference and cause the service to crash.
Affected software
PHP
Debian Linux
Amazon Linux AMI
Fedora
Opensuse
php
Debian Linux
Amazon Linux AMI
Fedora
Opensuse
php
How to mitigate CVE-2018-19935
The vulnerability has been addressed in the versions 5.6.39, 7.0.33, 7.3.0.
PHP - addressed in versions 5.6.39, 7.0.33, 7.3.0
php - addressed in versions 7.2.13-2.fc28, 7.2.13-2.fc29
php - addressed in versions 7.2.13-2.fc28, 7.2.13-2.fc29